Magnetic Field Dependence and<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>Q</mml:mi></mml:math>of the Josephson Plasma Resonance

Pedersen, Niels Falsig; Finnegan, T.F.; Langenberg, D. N.

doi:10.1103/physrevb.6.4151

Cited by 104 publications

(26 citation statements)

References 13 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…where f~p = c%/coj and ~bl and ~b2 are the turning points given by the appropriate solutions of E + cos ~bx,z + ~1,2 sin ~bo = 0 (6) and indicated in Fig. 3.…”

Section: Current-bias Modelmentioning

confidence: 99%

“…2"3 This mode was first observed experimentally by Dahm et al 4'5 Its properties in the small-amplitude limit were found to be in quantitative agreement with theory. Pedersen et al 6 No part of this publication may be reproduced, stored in a retrieval system, or transmitted, in any form or by any means, electronic, mechanical. photocopying, microfilming, recording, or otherwise, without written permission of the publisher.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Nonlinear Effects in the Josephson Plasma Resonance

Dahm

Langenberg

1975

J Low Temp Phys

Self Cite

View full text Add to dashboard Cite

Experimental and theoretical studies are reported of the stability of the zerovoltage state of Josephson tunnel junctions in the simultaneous presence of dc bias current and rf field at a frequency comparable to the Josephson plasma frequency. The observations can be qualitatively understoodin terms of largeamplitude parametric excitation of the plasma mode at fractional harmonics of the plasma frequency. The quasiparticle-pair interference or cos q5 current appears to play a significant role in the observed phenomena. Comments are made on nonlinear phenomena in the longitudinal nuclear magnetic resonance in superfiuid 3He A on the basis of a previously proposed analogy between the two systems.

show abstract

“…where f~p = c%/coj and ~bl and ~b2 are the turning points given by the appropriate solutions of E + cos ~bx,z + ~1,2 sin ~bo = 0 (6) and indicated in Fig. 3.…”

Section: Current-bias Modelmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Nonlinear Effects in the Josephson Plasma Resonance

Dahm

Langenberg

1975

J Low Temp Phys

Self Cite

View full text Add to dashboard Cite

show abstract

“…BCS theory cannot account for the measured value of the PDC in tunnel junctions [11,12], point contacts [13,14] or weak links [15][16][17]. Several effects may account for such discrepancy (see, e.g., Ref.…”

Section: Introductionmentioning

confidence: 99%

Phase-dependent noise in Josephson junctions

Sheldon¹,

Peotta²,

Ventra³

2018

Eur. Phys. J. Appl. Phys.

View full text Add to dashboard Cite

In addition to the usual superconducting current, Josephson junctions (JJs) support a phasedependent conductance related to the retardation effect of tunneling quasi-particles. This introduces a dissipative current with a memory-resistive (memristive) character and thus should also affect the current noise. By means of the microscopic theory of tunnel junctions we compute the complete current autocorrelation function of a Josephson tunnel junction and show that this memristive component gives rise to a non-stationary, phase-dependent noise. As a consequence, dynamic and thermal noise necessarily show a phase dependence otherwise absent in nondissipative JJ models. This phase dependence may be realized experimentally as a hysteresis effect if the unavoidable time averaging of the experimental probe is shorter than the period of the Josephson phase.

show abstract

“…One of them, the famous cos ϕ problem [7,8], puzzled the scientific community for many decades. Various experiments of the time [9][10][11][12][13][14] observed the sign of phase-dependent dissipative current, also known as the "cosine" or quasiparticle-pair interference term, to disagree from the prediction of the MTT [15]. It was later suggested that, in fact, either sign is possible, while the disagreement between the theory and experiments can be explained by broadening mechanisms which result in smearing of the Riedel peaks [16,17].…”

Section: Introductionmentioning

confidence: 99%

Josephson flux-flow oscillator: The microscopic tunneling approach

2017

View full text Add to dashboard Cite

Citation: GULEVICH, D.R., KOSHELETS, V.P. and KUSMARTSEV, F.V., 2017.Josephson flux-flow oscillator:The microscopic tunneling approach.Physical Review B, 96 (2), 024515-1 -024515-12.Additional Information:• We elaborate a theoretical description of large Josephson junctions which is based on Werthamer's microscopic tunneling theory. The model naturally incorporates coupling of electromagnetic radiation to the tunnel currents and, therefore, is particularly suitable for description of the self-coupling effect in Josephson junction. In our numerical calculations we treat the arising integro-differential equation, which describes temporal evolution of the superconducting phase difference coupled to the electromagnetic field, by the Odintsov-Semenov-Zorin algorithm. This allows us to avoid evaluation of the time integrals at each time step while taking into account all the memory effects. To validate the obtained microscopic model of large Josephson junction we focus our attention on the Josephson flux-flow oscillator. The proposed microscopic model of flux-flow oscillator does not involve the phenomenological damping parameter, rather the damping is taken into account naturally in the tunnel current amplitudes calculated at a given temperature. The theoretically calculated current-voltage characteristics is compared to our experimental results obtained for a set of fabricated flux-flow oscillators of different lengths.

show abstract

Magnetic Field Dependence andQof the Josephson Plasma Resonance

Cited by 104 publications

References 13 publications

Nonlinear Effects in the Josephson Plasma Resonance

Nonlinear Effects in the Josephson Plasma Resonance

Phase-dependent noise in Josephson junctions

Josephson flux-flow oscillator: The microscopic tunneling approach

Contact Info

Product

Resources

About